import base64
import tkinter
from tkinter import *
import sys
import os
# os.system(sys.argv[1])
# dict1 = {'ch':11,'chen':222}
# del dict1['ch']
# print(dict1)
#
# a = ()
# dict2 = dict.fromkeys()


# dict2 = dict1.copy()
# for k in dict1:
#     k = k.encode('utf8')
#     print(k)
# dict2 = dict1.copy()
# # dict2['ch'] = 333
# # print(dict2)



# dict1 = {'1': {'班级': 'Python', '姓名': '陈', '年龄': '18', '性别': '男'},
#  '2': {'班级': 'Python', '姓名': '张', '年龄': '6', '性别': '女'},'3':{'班级': 'JAVA', '姓名': '张', '年龄': '6', '性别': '女'}}
#
#
# list_clas = []
# list1 = []
# for sid in dict1:
#     clas = dict1[sid]['班级']
#     list_clas.append(clas)
#     dict1[sid]['学号'] = sid
#     list1.append(dict1[sid])
# # print(dict1)
# #
# # print(list_clas)
# # print(list1)
# # dict_information = {}
# # for i in range(len(list_clas)):
# #     dict_information[list_clas[i]] = list1[i]
# #
# #
# # print(dict_information)
#
#
#
#
#
#
#
#
# dict2 = { 'Python': [{ '姓名': '陈', '年龄': '18', '性别': '男','学号':'1'},{ '姓名': '张', '年龄': '6', '性别': '女','学号':'1'}],
#  'JAVA': { '姓名': '张', '年龄': '6', '性别': '女','学号':'2'}}
#
# sid = '1'
# clas = 'Python'
# list1 = []
# for cls in dict2:
#     list1.append(dict2[cls])
#
# print(list1)
# print(len(list1))
#
#
# list2 = []
#
# res = type(list1)
# # print(type(res))
# print(res.mro())
# # print(type(res.mro()))
# #
# res1 = type(dict2)
# print(res1.mro())
# # print(type(res1.mro()))
#
# for listi in list1:
#     list_type1 = ["<class 'list'>", "<class 'object'>"]
#     list_type2 = ["<class 'dict'>", "<class 'object'>"]
#
#     if str(type(listi)) in list_type1:
#         for i in listi:
#             list2.append(i)
#     elif str(type(listi)) in list_type2:
#         list2.append(listi)
#
# print(list2)
#
# list3 = []
# for i in list2:
#     list3.append(i['学号'])
#
# print(list3)
#
#
#
# #     for i in listi:
# #         list2.append(i)
# #
# # print(list2)
#
#     # for i in dict2[cls]:
#     #     list1.append(i)
#
#         # print(i['学号'])
#         # if  sid == i['学号']:
#         #     print('班级{}中的学生{}学号不能相等'.format(clas,i['姓名']))

import sys
a=sys.argv[1]
print(a)

















